close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2123890

код для вставки
July 19, 1938.
G, GCSSRAU
SURGICAL CLASP
2,123,890 T
'
‘Filed NOV. 28, 1956
lnvem‘or’
_ ‘ Q ofTHA/eb Gan-HA0.
By
IAfforney ' i ’
Patented July 19, 193
2,123,89
UNlTED STAES
PATEN'E OFFE
2,123,890
'
'
SURGIIGAL CLASP
Gotthard Gossrau, Bitterfeld, Germany, assignor,
by mesne assignments, to Magnesium Develop
ment Corporation, a corporation of Delaware
Application November 28, 1936, Serial No. 113,170
Germany June 3, 1933
2 Claims.
(Cl. 128-325) I
The present invention relates to improvements The middle section i thus formed is then, with
in surgical clasps.
the aid of the tongs, brought into position around
For surgical purposes, for example for the the vein 2 to be tied, and by closing the tongs
underbinding and tying of veins, etc. metal _ ?rst brought into the shape according to Figure
5 clasps made from silver, German silver, and 1b, whereupon, on the further exercise of pres
aluminium-alloys are frequently employed. Mag
sure by the tongs, the clasp is folded along a
nesium metal which, in contradistinction to the line 3 which is in parallel to its longitudinal ex
aforesaid metals or alloys, is resorbed' by the tension (compare Figure 1c). The bend thus
human or animal body without any di?iculty, and produced in the clasp renders it entirely rigid
10 which therefore would appear to be an unsur
and thus securely prevents the clasp from re- 10
passable clasp material for these purposes, has, opening by itself.
however, up-to-date not been employed to any
In adjusting the clasp, there is preferably made
great extent, the reason being that the produc
use of the tool according to Figures 2 and 2a.
tion of clasps having a sumcient strength and This tool consists of a pair of tongs of the usual
15 rigidity when applied to the body requires the surgical form, of ‘which the jaws ii and 5 are 15
employment of magnesium in the form of wire suitably shaped to receive the unfolded clasp and
or ribbon of such a thickness that a bending ‘of to produce the longitudinal bend in the clasp
the material in the cold is impossible.
‘
after folding. To this end, one of the jaws is
One of the objects of the present invention provided with a chamfer or furrow t corre
20 consists in devising a form of clasp for surgical sponding in cross-section to the cross-section of
purposes which enables the use of- magnesium the clasp in its ?nal form, whilst the other law
ribbon or tape of. a thinness which will allow is provided with a ridge 5 adapted to register
of a bending of the unfolded clasp without any with the chamfer or furrow 4. In order to retain
risk of its breaking. The necessary rigidity of the unfolded clasp in its position, a metal frame
25 the clasp, the material of which would be too 6 is attached to the ?rst-named jaw which sur- 25
weak in itself, is, according to the present in
rounds the chamfer or furrow d.
.
vention, achieved by a suitable shaping operation
In using the tongs, the strip of magnesium
which takes placeonly after the ribbon or tape bent according to Figure 1a is inserted in the
forming the clasp has been applied to the vein trough formed by the frame 6 and then folded
30 to be tied. According to the preferred embodi
around the vein to be tied in the usual manner, 30
ment of the present invention such suitable shap
the jaws of. the tongs, on closing, ?rst compress
ing is brought about by indenting or bending the ing the strip into the form shown in Figure 1?).
folded clasp along a linein parallel with the On the further exercise of pressure the bend 3
longitudinal extension of. the clasp with the aid as shown in Figure .1c, is formed in the clasp by
35 of a suitable tool.
chamfer or furrow ll registering with ridge 5 so 35
E In the annexed drawing, Figures 1a, 1b and that ?nally the clasp tied around the vein as
' 1c are representative of the various stages of
sumes the form shown in Figure 1c. The clasp
applying the clasp according to the present in
is then securely fastened and effectively pre
~ vention to the body, whilst Figure 2 is a frontal vented from re-opening.
420 view of a pair of tongs to be employed in adjust
I claim:
40
ing and bending the clasp, and Figure 2a a view
1. A surgical clasp consisting of a folded piece"
of one of the jaws of the tongs in a position at
right angles to that shown in Figure 2.
According to a preferred embodiment of the
of. ribbon or tape of magnesium metal being bent
along a line in parallel with its longitudinal axis.
2. A surgical clasp consisting of a folded piece
of ribbon or ‘tape of magnesium metal so as to 45
form a base and two sides overlapping each other,
Q5 invention, a strip of magnesium sheet of 0.05 mm.
thickness, being 15 mms. long and 5 mms. wide, is
bent in U-shape fashion according to Figure 1a, ' such folded piece being bent along a line in par- ' the middle section being 7 mms. long and the two allel with its longitudinal
sides being 2 mms. and 6 mms. long, respectively.
Документ
Категория
Без категории
Просмотров
0
Размер файла
167 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа